Draft-equalizer



Patented lan.' 3|, |899.- R. D. BURROUS W. M. BREWER.

No, s|a,779.

DRAFT EUALlZER. (Appximion' med June 7, lessi.)

(N0 Model.)`

.9k En $568) N im@ 'me Nonmsvzrsas co., Puocilllnov, WASHINGTON, D. c.

UNITED 'STATES PATENT OFFICE.

RICHARD O. BURROUS AND WILLIAM M. BREWER, OF PIERSON, ILLINOIS.

DRAFT-EQUALIZER.

SPECIFICATION forming part of Letters Patent No. 618,779, dated January31, 1899.

Application filed June '77, 1898. Serial No. 682,802. (No model.)

To all whom it' may concern.-

Be it known that we, RICHARD O. BURRoUs and WILLIAM M. BREWER, citizensof the United States, residing at Pierson, in the county of Piatt andState of Illinois, have invented certain new and useful Improvements inDraft-Equalizers; and we do hereby declare the following to be a full,clear, and eX- act description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in draft-equalizers moreespecially adapted for gang-plows or similar farming implements intendedfor use where three or more horses are pulling abreast, and it isespecially adapted for a four-horse team or the like.

The objects of the invention areto simplify the construction of suchequalizers, forming the same of a fewer number of parts, Which shall atthe same time have equal efficiency as those of which We are aware whichcontain numerous additional elements; to adapt the equalizer forattachment to any ordinary fourhorse cross-tree in a very quick,efficient, and easy manner; to so arrange the parts that the doubletreecan be hitched much shorter than it can be in the ordinary equalizer,thereby saving a material amount of draft; to so forin and arrange theparts that the equalizer can be used on either a right or left hand plowWith the change of the minimum number of parts; to produce an equalizerWhich can be hitched to either an upright or horizontal clevis; toprovide for adjustably connecting the equalizer to the clevis-hook, soas to throw the weight of the draft more or less to one side or theother, and to generally improve and simplify the construction of suchequalizers. These and other objects We attain by the constructions,arrangement, and combination of parts hereinafter described, and

particularly set forth in the claims.

In order to make our invention more clearly understood,we have shown inthe accompanying drawings means for carrying the same into practicaleffect; but We desire it to be particularly understood that We do notlimit our improvements in their usual applications to the particularconstruction which for sake of illustration We have therein delineated.

In the drawings, Figure l is a plan view of an equalizer embodying ourimprovements applied to afour-horse doubletree. Figs. 2, 3, 4, and 5 arevertical sections, respectively, on the lines 2 2, 3 3, 4 4, and 5 5,Fig. I.

Referring to the drawings, wherein like letters refer to similar partsthroughout the several views, A indicates a cross-tree of ordinaryconstruction, provided centrally With an aperture a, to which theplow-clevis hook would ordinarily be applied were the doubletree notprovided with ourimproved equalizer. To the cross-tree A are suitablyattached, as usual, doubletrees B B, to Which in turn may be attachedthe ordinary singletrees, as is common. The cross-tree is provided atits ends with the horizontal bolt-hole 0,', and is also provided at itsends with the vertical bolt-holes a3 and d4. Passing through thebolt-hole a' is a bolt C, having at the rear end thereof an eye c and atthe other end a nut c for securing the bolt to the cross-tree.

D D represent pivot-bolts for the doubletrees, one of which is securedin the hole a3 and the other of which is secured in the hole a4 in thecross-tree. Pivoted on or near the bolt D is a clevis E.

F is a bar or lever provided at one end with a series of holes f and atthe other end with a series of holes f2, through one of the latter ofwhich passes a bolt f3, pivotally and adjustably connecting the bar withthe clevis E.

G represents a rod or link preferably provided at one end with a hook oreye g, which is connected by a link g with the eye c of the bolt C. Atits other end the rod Gis provided with a bifurcated portion g2, havingend perforations through which and through one of the series of holes fin the bar F passes a pivot-bolt or rivet g3, pivotally connecting therods G and F. Y

H indicates a clevis provided at its bifurcated end with holes h,through which a bolt or pin 72.' is passed to connect the same to theplow-clevis or plow-beams, (indicated at i.) In the, forward end of theclevis H is a hole h2, in which is swiveled a hook J, adapted fordetachable connection with the lever F by insertion in either one of theseries of holes f2. By the swivel connection of the hook J with theclevis H it Will be readily seen that IOO the latter' can be connectedto either a horizontal or vertical clevis on the plow-beam.

It Will be seen from the drawings that the equalizer described isconstructed of the fewest possible parts and in the simplest manner, thearrangement beingr such that the line of draft is thrown to one side (inthe present instance the left) of the center of the crosstree, so thatby the lever-and-link connection the draft is perfectly equalized andthe plow or other implement caused to maintain its properposition.Should it be desired to throw the weight of the draft on the other sideof The center, it is only necessary to loosen and remove the bolt C andclevis E from the crosstree and reverse the equalizer, placing the boltC in the horizontal hole a2 at the opposite end of the cross-tree andthe clevis-bolt in the vertical hole a4 at the end of the crosstreeopposite to that at which it is shown in the drawings, thus easily andquickly adapting the equalizer with an ordinary cross-tree for a rightor left hand plow.

The series of holesf and f2 in the lever F permit of a quick and easyadjustment of the parts to throw the weight of the draft more or less toone or the other end of the crosstree.

By our arrangement we thus accomplish with a minimum number of parts adraft equalizer of equal efficiency with those of the usual constructioncontaining many more and more complicated parts.

Having thus described the invention, what 2. In a draft-equalizeradapted for either a right or left hand plow, the combination with across-tree provided near its ends with hori 4zontal and verticalbolt-h'oles, o'f a clevis pivoted in one of said vertical bolt-holes, aneyebolt secured in the horizontal hole at the op posite end of thecross-tree, a rod pivotally connected to said eyebolt, a lever adjustably pivoted to said clevis and pivoted to said rod, and a clevisadjustably connected to said leverand adapted for connection with theplowbeam, the arrangement of the several parts being such that theequalizer can be reversed by changing the positions of the eyebolt andclevis-pivot respectively to the opposite ends of the beam.

In testimony whereof we affix our signatures in presence two witnesses.

RICHARD O. BURROUS. WILLIAM M. BREWER. IVitnesses:

F. F. GUNN, J. F. ScHRoLL.

